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atapi: Allow GET_EVENT_STATUS_NOTIFICATION after media change 

After a media change, the only commands allowed from the guest were
REQUEST_SENSE and INQUIRY.  The guest may also issue
GET_EVENT_STATUS_NOTIFICATION commands to get media
changed notification.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Acked-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Amit Shah 2011-04-12 21:36:03 +05:30 committed by Kevin Wolf
parent 88f2bb58ef
commit 0c370a3549
1 changed files with 14 additions and 6 deletions
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20
hw/ide/core.c
View File

@ -1102,13 +1102,21 @@ static void ide_atapi_cmd(IDEState *s)
printf("\n"); printf("\n");
} }
#endif #endif
/* If there's a UNIT_ATTENTION condition pending, only /*
REQUEST_SENSE and INQUIRY commands are allowed to complete. */ * If there's a UNIT_ATTENTION condition pending, only
* REQUEST_SENSE, INQUIRY, GET_CONFIGURATION and
* GET_EVENT_STATUS_NOTIFICATION commands are allowed to complete.
* MMC-5, section 4.1.6.1 lists only these commands being allowed
* to complete, with other commands getting a CHECK condition
* response unless a higher priority status, defined by the drive
* here, is pending.
*/
if (s->sense_key == SENSE_UNIT_ATTENTION && if (s->sense_key == SENSE_UNIT_ATTENTION &&
s->io_buffer[0] != GPCMD_REQUEST_SENSE && s->io_buffer[0] != GPCMD_REQUEST_SENSE &&
s->io_buffer[0] != GPCMD_INQUIRY) { s->io_buffer[0] != GPCMD_INQUIRY &&
ide_atapi_cmd_check_status(s); s->io_buffer[0] != GPCMD_GET_EVENT_STATUS_NOTIFICATION) {
return; ide_atapi_cmd_check_status(s);
return;
} }
switch(s->io_buffer[0]) { switch(s->io_buffer[0]) {
case GPCMD_TEST_UNIT_READY: case GPCMD_TEST_UNIT_READY: